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📁 一些算法小技巧 有利于学习C语言 在C语言和JAVA中都可以用的
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<title>贪婪（贪心）算法 Greedy Algorithm </title>
<meta name=Description content="2005/9/19: 2.4.1 递推 ：">
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 <div v:shape="_x0000_s77826" class=T style='position:absolute;top:9.0%;
 left:14.41%;width:83.14%;height:9.25%'><span lang=ZH-CN style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman";color:yellow;
 mso-ansi-language:EN-US'>2.4.1 </span><span lang=ZH-CN style='color:yellow;
 mso-ansi-language:EN-US'>递推</span><span lang=ZH-CN style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";color:yellow;mso-ansi-language:EN-US'>
 </span><span lang=ZH-CN style='color:yellow;mso-ansi-language:EN-US'>：</span></div>
 <div v:shape="_x0000_s77827">
 <div class=B style='mso-line-spacing:"90 20 0";position:absolute;top:20.0%;
 left:13.48%;width:83.14%;height:6.25%'><span style='position:absolute;
 top:0%;left:4.5%;width:95.49%'><span style='color:yellow'><span
 style='mso-special-format:bullet;color:#FFCC66;mso-color-index:3;position:
 absolute;left:-4.71%;top:.1em;font-family:Symbol;font-size:90%'>¨</span></span><span
 lang=ZH-CN style='color:yellow;mso-ansi-language:EN-US'>基本步骤：&#13;</span></span></div>
 <div class=B style='mso-line-spacing:"90 20 0"'><span style='position:absolute;
 top:27.25%;left:13.48%;width:96.62%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";mso-ansi-language:EN-US'><span style='mso-tab-count:1;
 width:3.88%'> </span></span><span lang=ZH-CN style='font-size:75%;mso-ansi-language:
 EN-US'>通过反复迭代，将递归方程的右端变换成一个级数，</span></span><span style='position:absolute;
 top:34.0%;left:17.22%;width:92.13%'><span lang=ZH-CN style='font-size:75%;
 mso-ansi-language:EN-US'>然后求级数的和，再估计和的渐近阶；或者，不求级</span></span><span
 style='position:absolute;top:38.75%;left:17.22%;width:92.13%'><span
 lang=ZH-CN style='font-size:75%;mso-ansi-language:EN-US'>数的和而直接估计级数的渐近阶，从而达到对递归方</span></span><span
 style='position:absolute;top:43.75%;left:17.22%;width:79.4%'><span lang=ZH-CN
 style='font-size:75%;mso-ansi-language:EN-US'>程解的渐近阶的估计。</span><span
 lang=ZH-CN style='font-size:75%;color:#EEB00B;mso-color-index:4;mso-ansi-language:
 EN-US;display:none'>&#13;</span></span></div>
 <div class=B style='mso-line-spacing:"90 20 0";position:absolute;top:50.0%;
 left:13.48%;width:83.14%;height:6.25%'><span style='position:absolute;
 top:0%;left:4.5%;width:95.49%'><span style='color:yellow'><span
 style='mso-special-format:bullet;color:#FFCC66;mso-color-index:3;position:
 absolute;left:-4.71%;top:.1em;font-family:Symbol;font-size:90%'>¨</span></span><span
 lang=ZH-CN style='color:yellow;mso-ansi-language:EN-US'>技能要求：&#13;</span></span></div>
 <div class=B1 style='mso-line-spacing:"90 20 0";position:absolute;top:57.25%;
 left:18.53%;width:78.08%;height:4.75%'><span style='mso-special-format:nobullet;
 display:none'>–</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:86%;mso-ansi-language:EN-US'>1、耐心&#13;</span></div>
 <div class=B1 style='mso-line-spacing:"90 20 0";position:absolute;top:63.25%;
 left:18.53%;width:78.08%;height:4.75%'><span style='mso-special-format:nobullet;
 display:none'>–</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:86%;mso-ansi-language:EN-US'>2、级数求和的技巧&#13;</span></div>
 <div class=B1 style='mso-line-spacing:"90 20 0";position:absolute;top:69.0%;
 left:18.53%;width:78.08%;height:4.75%'><span style='mso-special-format:nobullet;
 display:none'>–</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:86%;mso-ansi-language:EN-US'>3、归纳能力&#13;</span></div>
 <div class=B style='mso-line-spacing:"90 20 0";position:absolute;top:74.75%;
 left:13.48%;width:83.14%;height:6.75%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";color:yellow;mso-ansi-language:EN-US'><span
 style='mso-tab-count:1;width:4.51%'> </span></span><span lang=ZH-CN
 style='color:yellow;mso-ansi-language:EN-US'>层层扒皮：&#13;</span></div>
 <div class=B style='mso-line-spacing:"90 20 0";position:absolute;top:82.25%;
 left:13.48%;width:83.14%;height:5.25%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";font-size:75%;mso-ansi-language:EN-US'><span
 style='mso-tab-count:1;width:4.51%'> </span></span><span lang=ZH-CN
 style='font-size:75%;mso-ansi-language:EN-US'>将等式右侧的</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-fareast-language:ZH-CN'>f</span><span lang=EN-US
 style='font-size:75%;mso-fareast-language:ZH-CN'>（</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-fareast-language:ZH-CN'>n-1</span><span lang=EN-US
 style='font-size:75%;mso-fareast-language:ZH-CN'>）一直推到</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-fareast-language:ZH-CN'>f</span><span lang=EN-US
 style='font-size:75%;mso-fareast-language:ZH-CN'>（</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-fareast-language:ZH-CN'>0</span><span lang=EN-US
 style='font-size:75%;mso-fareast-language:ZH-CN'>）&#13;</span></div>
 <div class=B style='mso-line-spacing:"90 20 0";position:absolute;top:88.5%;
 left:13.48%;width:83.14%;height:6.75%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";color:yellow;mso-ansi-language:EN-US'><span
 style='mso-tab-count:1;width:4.51%'> </span></span><span lang=ZH-CN
 style='color:yellow;mso-ansi-language:EN-US'>综合归类：</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-fareast-language:ZH-CN'><span style='mso-tab-count:1;
 width:4.84%'> </span>&#13;</span></div>
 <div class=B style='mso-line-spacing:"90 20 0";position:absolute;top:96.0%;
 left:13.48%;width:83.14%;height:5.25%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";font-size:75%;mso-ansi-language:EN-US'><span
 style='mso-tab-count:1;width:4.51%'> </span></span><span lang=ZH-CN
 style='font-size:75%;mso-ansi-language:EN-US'>级数求和</span></div>
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